685408006G 44
Communication Connection:
The unit supports standard Modbus protocol and RTU mode. The factory default communication address:
"1", Bau: "9.6Kbps". RS485 allows 32 units to be connected together as a network. In order to link cooling
units, following methods shall be taken:
Connect the shield sheath to earth terminal, a 120ohm matching resistance should be connected to the
last cooling unit.
In order to aviod any destructive effect, should use twist-pair cable with protective sheath.
Make sure that no strong interference sources surrouding the communication wires. Connect each cooling
-, PE) terminal correctly.
10 Operating condition
11 Putting into operation and function
section 7.1
(See
Appendix II).
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